摘要
辽河油田龙618区块是一个常规稠油区块,针对该区块原油粘度高,常规注水开发效率低等问题,进行室内岩心实验,研究化学剂用量及注入时机对驱油效果的影响。结果表明:化学驱采出程度随化学剂用量(PV)增加而变大,当化学剂用量大于0.6 PV后,采出程度上升幅度变缓;水驱转注化学剂的时间越早,采收率越高。
Long 618 is a conventional heavy block in Liaohe oil field. Aiming at the problems of high viscosity of heavy oil and the low conventional water injection development efficiency,lab core experiments were carried out to study the influence of chemical agent dosage and injection time on heavy oil displacement efficiency. The results show that： with the increasing of chemical agent dosage,the degree of chemical reserve recovery increases,and it rises slowly after the injection volume is more than 0.6 PV; The sooner we inject the chemical agent,the higher recovery ratio.
出处
《当代化工》
CAS
2016年第1期7-9,共3页
Contemporary Chemical Industry
基金
中国石油科技创新基金"特高含水期二元驱多段赛等流度驱油方法研究"
项目号:2013D-5006-0203
关键词
稠油
化学驱
化学剂用量
注入时机
采收率
Heavy oil
Chemical flooding
Dosage of chemical agents
Injection time
Recovery ratio
